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(No Model.)

- G. P. HUTGH-INS. l .TAKE-F MBGHANISM POR LooMs.

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UNITED -Sin-TES PATENT 1 OFFICE.

GEORGE E. HUToHiNSOE WORCESTER, MASSACHUSETTS, ASSIGNOR To THE KNOWLES LOOM WORKS, OF SAME PLACE.

TAKE-UP MECHANISM FOI-l LOOMS.

SPECIFICATION forming part of Letters .Patent N o. 380,117. dated March 27, 1888.

Application filed July 8, 1887. Serial No. 243,736. (No model.)

.To @ZZ whom it may concern: v

Be it known that I, GEORGE F. HUTcHINs, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Take-Up Mechanism for Looms; and I vdo hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings making a part of this specification, will enable others skilled in the art to'which my invention belongs to make and use the same.

My invention relates to variabletake-up mechanism for looms in which the speed or degree of movement of the take-up roll is varied by means of a shield governing the movement given to a ratchet-'wheel by a push or pull pawl.

The object of my invention is to produce an improved take-upmechanism for looms, and

. which is the pinion b.

to provide a simple mechanism by means of which a great range of speeds of the take-up roll upon whichthe woven fabric is wound is obtained without resort to changing the gears in the train, through the intervention of f which the take-up roll is operated, and also to provide for particular advantages in fancy weaving by operating the push or pull pawl directly from the Jacquard or harness-head motion.

Referring to the drawings, Figure l is a side view of a portion of an ordinary loom, showing the application of my invention. Fig. 2 is an end view of some of the parts shown in Fig. 1. Fig. 3 is a modified detail of the locking mechanism shown in Figs. l and 2, to be hereinafter described.

' In the accompanying drawings, A is loom-frame. r

b is a ratchet-wheel, cast upon the hub of A Stud, b2, is secured to the lframe A, upon which the ratchet-wheel b and pinion b turn. The gear c, which is fast upon the shaft c', which turns in a bearing, c, Secured to the loom-frame A, meshes with the pinion b. The shaft c projects the "through the'bearing c2 and carries upon its inner end pinion c, which engages with the gear-Wheel d, secured uponthe end of the` take-up roll d', which has its bearingin the i stand d, secured to the frame A.y (See Fig. 2.)-

The arm e has its bearing upon the stud b,

and is provided with a shield or guard, ete?, at

`its outer end, which projects over and covers It will thus be seen that the jointed yshield or guard e e2 does away with the separate holdfast-pawl and stand. The outer end or part, i

e, of the-shield e e2 is shown elevated by dot ted lines, Fig. 1. Said part is held down upon the ratchet-wheel b in all positions by means ofthe iiat spring e4. The part e2 is so shaped as to guide the push-pawl smoothly into the ratchet-teeth, with no liability of the paw] rebounding and jumping the'tooth, as might be the case in quick running, with .the shield up clear of the teeth, so the'pawl must drop over its edge.

Upon the same hub with arm e is cast an4r arm, e5, to the end of which is jointed the nut eleaving the nut free to turn in the direction of the plane of the arm. Into the nut e6 is screwed the lower end of the rod f,which has a bearing in the stand f fast to the frame A. Upon the upper end of the rod f, just above the bearng,is secured a small hand-wheel, f, which, with a collar, f4, fast on rod f just below' the bearing, holds said rod in position, so that when the rod is turnedthe nut e6 is raised or lowered, according to the direction of motionof the rod f, whichhas the effect o fswing-Y ing the Shield or guard e e? 4in one direction or the otherrelatively to the teeth of the ratchet-wheel b. In this instance a lock-plate, f3, of any ordinary construction, (with its Ain, terior edge cut out to correspondwiththe hexagonal-shaped hub ofthe hand-wheel f2 and adapted to fit over said hub,) is secured by a screw, f6, to the bearing of the rod f. By turning out the screwf6 the lock-plate fwill be drawn 'out and away from the hexagonal Y hub on the hand-wheelf2, allowing Saidhandwheel and the rod f to 4be Afreely turned in either direction; and'by turning in said screw f6 the lock-plate f3 will be drawn in to engage IGO and fit over the hexagonal hub of the handwheel and prevent the rod f from being turned in either direction as long as the lock-plate engages the hub of the hand-wheel.

It will be understood that I do not limit myself to the special way of locking the rod f to prevent it from being turned shown in the drawings, for any ordinary way may be employed; and it is not essential that the rod f should be locked, for the object of locking the rod is simply to prevent the weaver from changing the take-up after it is once set.

The front end of the push-pawl g is placed above the shield or guard e' e. The back end of the pawl g is in this instance pivoted to the arm g', which arm is fast upon one end of the shaft g', which has a bearing in the stand g3, bolted to the frame A. (See Fig. 1.) Upon the inner end of the shaft g2 is fastened the arm g, to the end of which is attached the connection g6 to the Jacquard or harness-head motion, according to the character of theloom to which my take-up mechanism is applied.

A coiled spring, g5, secured at one end to the frame A and at the other end to the arm g, draws said arm g* into the position shown in Fig. 1 when released by the Jacquard or harness-head motion. In the stand g3 are supported stops gl, to regulate the degree of motion of the arm g.

The operation of the take up mechanism described and shown in the drawings is as follows: The parts being in the position shown in Fig. 1, motion is given to the pushpawl g, through the arms g g, by means of the Jacquard or harness-head motion, through the connection gs. The pawl g slides over the outer end, e2, of the shield or guard e c2 until it strikes the root of the first tooth of the ratchet-wheel b not covered by said shield, and for the remainder of its motion the ratchetwheel b, and through the gearing train above described the cloth-roll d, are turned in the proper direction to take up the woven fabric coming over the breast-beam Bof the loom. By loosening the lock-plate f3 and turning the rod f the operator can swing the shield e' e2 so that a greater or less number of teeth will be exposed to the action of the pawl g, so that a greater or less proportion of the given movement of the pawl will act to move the take-up roll.

v It will readily be seen by those skilled in the art that the closeness of regulation of the take-up in this manner is limited by the fineness of the ratchet-wheel teeth. If it is desired to regulate the take-up finer than this, the shield e e2 can be set so as to permit the pawl g to take twice as many teeth plus on'e as were before exposed to the action of the pawl. Il", then, the harness motion is changed so as to give motion to the pawl only on every second pick of the loom, the effect will be to split a tooth on the ratchet-wheel. Instead of taking twice as many teeth plus one, twice as many plus two or three might be taken, or

l three times as many plus two or three andthe harness motion set to every third pick, so that the take-up can be varied to any degree of ineness and still have no changing of gears in the train, and have the ratchet-wheel with teeth large and strong, subject to no danger of breakage.

It is often desirable in fancy-weaving to stop the take-up on certain picks-as, for instance for weaving a flower or figure which is superimposed or oated upon a ground, when it is desirable to take up only on ground picks. My invention enables me to do this perfectly, as the cords of the Jacquard can be so punched or the harness-chain so made as to call the action of the pawl g, operated by the Jacquard or harness motion, at will.V

The push-pawl for operating the ratchetwheel may be operated by means of a crank, h2, on the end of the bottom shaft, h3, instead of by means of the Jacquard or harness-head motion, as above described; or the pawl may be operated from the lay of the loom.

The-pawl g may be arranged to pull instead of push, if preferred, in which case the teeth of the ratchet-wheel will be reversed.

The amount of motion given to the pawl g for a given travel of the harness motion can be varied by leaving the connection g more or less slack, and a yielding spring, g, may be made use of to advantage.

It is sometimes desirable to wind the woven fabric directly upon the take-up roll,in which case it is necessary to make the take-up roll revolve slower as the woven fabric accumulates thereon, or'it will take up too fast.

Y In Fig. 3 I have shown a form of lock designed to allow the weaver to shift the shield or guard e e2 by turning the rod f so as to expose a less and less number of teeth as the woven fabric accumulates on the take-up roll. In said figure, f is a stand; f, the handwheel; f, the collar; andf5 is a second handwheel threaded upon the hub of the handwheel f 2, so that by screwing down the handwheel]05 upon the standf the rodfis heldin position.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. In a take-up mechanism, the combination, with a ratchet-wheel and a push or pull pawl for operating the same and means for operating said pawl, of a jointed or hinged shield or guard, the outer end of which acts as a holdfast-pawl, substantiallyr as described.

2. In a take-upmechanism, the combination, with a ratchet-wheel and a push or pull pawl for operating the same and means for operating said pawl, of the movable jointed shield or guard, the shield-support, ajointed nut attached to said support, a screw-rod connected with said nut for adjusting said shield or guard, and means for supporting said rod, substantially as set forth.

3. In a loom, the combination, with a TOO IXO

IZO

tween said pawl and the Jacquard or harness Witnesses:

ratchet-wheel for driving the take-up roll and 4. A jointed or hinged shield or guard for an adjustable jointed or hinged' shield, the an actuating push orpuil pawl, the outer end to outer end of which acts as a holdfast-pawl, of which shield Yacts as a holdfast-pawl, suband means for adjusting said shield, of a push stantially as and for the purpose stated. l

or pull pawl and connections intervening be- GEORGE F. HUTCHINS.

motion for actuating the same, substantially JOHN C. DEWEY, as shown and described. RALPH DRYDEN. 

